烟台市2014年-2016年市政供水水质状况分析  

Analysis of municipal drinking water quality in Yantai during 2014-2016

作　　者：王松松[1] 刘磊[1] 徐建军[1] 于桂梅[1] WANG Song - song, LIU Lei, XU Jian -jun, YU Gui - mei(Yantai Center for Disease Control and Prevention, Yantai, Shandong 264003, Chin)

机构地区：[1]烟台市疾病预防控制中心,山东烟台264003

出　　处：《中国卫生检验杂志》2018年第9期1108-1110,共3页Chinese Journal of Health Laboratory Technology

基　　金：2017年度山东省医药卫生科技发展计划(2017WS570)

摘　　要：目的通过分析烟台市近年来城市市政供水卫生监测数据,了解水质变化趋势,为改善城市饮用水水质提供可靠的科学依据。方法 2014年-2016年,每季度对烟台市区的出厂水和部分末梢水、二次供水按照GB 5749—2006《生活饮用水卫生标准》进行分析评价。结果 2014年-2016年,共检测水样372份,总合格率为80.38%。出厂水、末梢水、二次供水合格率分别为100.00%、82.92%、73.33%。二次供水合格率显著低于出厂水和末梢水,差异有统计学意义(P<0.05)。细菌学指标的合格率显著低于感官性状和一般化学指标、毒理学指标,差异有统计学意义(P<0.05);第三季度水质合格率明显低于第一季度、第二季度、第四季度,差异有统计学意义(P<0.05)。细菌学指标在不同季度差异有统计学意义,第三季度合格率最低。结论应加强末梢水、二次供水的监督检测力度,确保其水质质量。在第三季度,应适当增加消毒剂的投放量。Objective To analyze the sanitation monitoring data of municipal water supply in Yantai in recent years and understand the trend of water quality changes,so as to provide reliable scientific basis for improving the quality of drinking water.Methods During 2014-2016,according to GB 5749—2006 Drinking Water Health Standards,the drinking water quality of factory water,tap water,secondary water supply was monitored and assessed every quarter. Results From 2014 to 2016,372 water samples were detected and the total qualified rate was 80. 38%. The qualified rate of factory water,tap water and secondary water supply were 100. 00%,82. 92% and 73. 33%,respectively. And the qualified rate of secondary water supply was significantly lower than those of the factory water and tap water,with the differences statistically significant（P 〈 0. 05）. The qualification rate of bacteriological indicators was significantly lower than that of sensory traits,general chemical and toxicological indicators,and the differences were statistically significant（P 〈 0. 05）. The pass rate of water quality was significantly lower in the third quarter than in the first,second,and fourth quarters,and the differences were statistically significant（P 〈 0. 05）.The differences of bacteriological indicators were statistically significant at different quarters,with the lowest rate in the third quarter. Conclusion The supervision of tap water and secondary water supply should be strengthened to ensure the water quality. In the third quarter,the content of chlorine should be increased in the water.

关 键 词：市政供水 出厂水 末梢水 二次供水 

分 类 号：R123.1[医药卫生—环境卫生学]